A:开始沦为半殖民地半封建社会
B:人民军队从此创建
C:全国性内战的开始
D:全国性的抗日战争从此爆发
已知:①CH4(g)+H2O(g)⇌CO(g)+3H2(g)△H=+206.2kJ•mol﹣1
②CO(g)+H2O(g)⇌CO2(g)+H2(g)△H=﹣42.3kJ•mol﹣1
—He _______ be here just now. His coffee is still warm.